Thread-guiding device for spinning frames



April 7,1925. 2 1,532,282

A. C. VARNUM THREAD GUIDING DEVICE FOR SPINNING FRAMES Filed Dec. 31, 1925.

Patented Apr. 7, 1925.

"ARTHUR G. VARNUM, OF SOUTHBRIDGE. MASSACHUSETTS.

THREAD -GUIDING DEVICE FOR SPINNING FRAMES.

Application filed December 81, 1923. Serial No. 683,700.

T 0 all whom it may concern.

Be it known that I, AnrrIrUn c vARNU'M, a citizen of the United States, residing at Southbridge, in the county of orcester and Commonwealth of Massachusetts, have invented a new and useful Improvement in a Thread-Guiding Device for Spinning Frames, of which the following, together with the accompanying drawings, isa specification.

My invention relates generally to spinning frames and has for its object to pro vide an improved thread guiding device which is particularly adapted for use in connection with cap spinning frames.

In my oopending application Serial No. 542,675, filed March 10, 1922, there is shown and described, but not claimed, aipivoted thread guiding device for use in connection with an improved arran'gementof separator plates, which latter provide the basis of the claims of said application. The present application seeksto cover the novel features of the thread guiding device shown inthe above mentioned application, together with certain additional features hereinafter pointed out.

Among the advantageous results obtained by the use of my improved thread guiding device are the substantial elimination of double spinning and the collection of fly around the thread guides during the operation of the spinning frame, and the possibility of turning each thread guide inde pendently of the others, while spinning, or

of lifting all of the thread guides in unison,

when dofling. A still further advantage of my improved construction resides in the provision of means whereby a thread is effectively prevented from accidentally coming out of its guide after once having been placed therein, especially when dofiing. The

above and other advantageous features of my invention will hereinafter more fully appear, reference being had to theaccompanying drawings in which Fig.1 is a view in end elevation of a spinning frame embodying my invention.

Fig. 2 is a view in front elevation of the parts shown in Fig. l. g h

Fig. 3 is a plan view of the'parts shown in Fig. 1.

Fig. 4 is an enlarged view in side elevation of one of my improved thread guides.

Fig. 5 is a plan view of the guide shown in Fig. 4:. I

Fig. 6 is a view in front elevation of the 1 guide shown in Fig. 5.

Fig. 7 is a view similar to Fig. 5, looking at the underside of the thread guide.

Fig. 8 1s a plan view of the sheet metal blank from which the thread guide is. formed.

Like reference characters refer to like parts in the different figures.

vlleferring to Figs. 1 and 4, the roller beam of a spinning frame is indicated at l,

each bracket 5 being preferably formed of a strip of sheet metal bent back on itself at either end to provide projecting ears 6. A thread guide or pot-eye holder 7 is pivotally mounted between each pair of ears 6 by' means of a pin 8, the end of each holder 7 being bevelled at 7 a to provide a heel 9 which serves to maintain the holder 7 substantially parallel to the thread board 2, as indicated in Fig.1. i

As best shown in Figs. 4 to 7 inclusive, each holder 7 is provided near its free end with opposed semi-circular portions 10 and 11, which together provide a cylindrical seat for the reception of a guide or pot-eye 12 having a top flange 13 supported by the portions 10 and 11. Each pot-eye 12 is preferably formed of porcelain, or other similar smooth durable material, and is provided with a central thread opening 1 1 having a radial slot 15 communicating therewith.

The side portions of the holder 7 extend outwardly beyond the pot-eye seat to provide divergent wing portions 16 and 17, and as clearly shown in Figs. 5 and 7, the wing portions 16 and 17 are provided with inwardly extending barbs 18 and 19, respectively. The barbs 18 and 19 point inwardly toward the seat for the pot-eye l2 and are vertically displaced with respect to each other, as shown in Fig. 6. The barbs 18 and 19 are adapted tov permit the entrance of a thread into the thread opening 14 of the pot-eye, but toprevent it from accidentally receive the thread 20 from a pair oi drawing rolls 21.. The thread opening 14- in each pot-eye 12 is held substantially in alinemcnt with the vertical axis of a cap 22 and its associated spindle, the thread 20 being shown as passing from between the rolls 21 through a pot-eye 12 to the cap 22.

With the above described arrangement, 1t is obvious that each holder 7 may be lifted about its p 'ot pin 8 into the position shown in dotted lines in Fig". 1 any time during spinning, or all the holoers 7 may be lifted in unison by turning the bar 3 on its hinges -lwhen it is desired. to doll the machine as a whole. When individual holder is lifted, as shown in l 1, th bevelled suriace 7 limits its upward movement so that it returns to its original aosition as soon as it is released, whereas, when all of the hold ers are lift d by die bar 2-5, as shown in dotted lines in Fig. l-, the holders will tall back into the position shown, and realism out of the way during the operation of dotting. it is also apparent that while a thread 20 may be readily passed betveen the inwardly projectingbarbs 1S and of t ie holder to position it in the thread opening l l, it will be practically impossible for a thread 20 to accidentally leave the opening 14, by reason of the fact that the barbs 1S and 19 would be sure to catch the thread, The divergent wing portions 16 and l? of the holder guide the thread to the pot-eye seat from either side, the thread easily passing overthe barbs l8 and 19 to enter the slot 15.

From an inspection of Fig". 3, it apparent that the poteye holder 7 will collect little or no lly, or lint, during spinning, by reason of the fact that the holders 7 are spaced apar' and present smooth surtaees. This open construction is much superior from this standpoint than prior constructions for cap spinning frames, in which the potreyes have usually been mounted on a continuous thread board. elimination of a continuous thread board and the substitution of separate pot-eye holders therefor, also materially reduces the possibility of double spinning, owing to the fact that there no continuous surface between adjacent pot-eyes upon which the broken end of a thread can pass from one pot-eye to another, thus allowing two ends to pass through one pot-eye to be spun together. lVhen desired, separator plate can be employed which extend between and above adjacent holders 7, as set for h in my above mentioned application, Serial No. l -:f.2-,(5?5.

Referring now to. 8, there is shown a development of the sheet metal blank, from which one of my improved holders T can readily be formed, with a minimum amount of lab l The blank 2% is generally rectangular in term and is provided at with a centrally lo ated cu tions of the blank 2:: on ()l 1)( Slt cut are then suitably n semi-circular portions 10 one. 22d r 16 and 17, after which the prongs 1S and it are stamped out. The blank thei folded along its middle, as in dotted line, to bring the l'oldeo close engagement, inwhich potions 10 and 11 will spaced vice a cylindrical. seat for the pot-eye clearly shown in Fig. 7.

From the foregoing t is apparent "a my invention 1 have provided an in; arrangement of the parts of a cap spinnin; frame, in which double spinning: is sub:- ta;;- tially eliminated, the cello tion of fly or lint is reduced to a minimum, and whereby it. is possible to hit the thread guides or pot-eyes, either separately during spinning, or in unison when dotting. my invention provides means D the threads from coming on I pot-eyes after once having been placed therein, cspecially during-the operation oi coiling.

I claim:

1. In a spinning frame, a pot-eye holdelormed from a strip of sheet metal be along a median line to provide portions parallel planes, each of said portions being pressed out: to provide oppositely disposed semi-cylindrical seats.

2; in a spinning frame or like machine, a pot-ey holder comprising a flat member hinged to a bracket, said fiat member disposed in a vertical plane, tog ether with a substantially cylindrical wall extending from the fiat member, said wall adapt receive the pot-eye and said wall broken away, and extensions thereol e iug' outwardly to form wings cntrz nce of a thread.

3. In a spinning frame or like machine, a pot-eye holder oon'iprising a flat member hii'lg'cd to a bracket, said fiat member being to :"uide disposed. in a vertical plane, together with a cylindrical wall extending from the flat meml er, said wall adapted to receive the pot-eye and said wall being broken a av, extensions thereof extending outwardly to imcrating scmi-cylindrical walls and i'urther pressed to provide win s for rails to guide the entrance of a ti read, and barbs on said wings adapted to normally prevent erit of the thread,

ARTE C. TAR): 

